It is probably safe to say more big game has been taken with H4831 than any other powder. Bruce Hodgdon was the first supplier to introduce this popular burning rate in 1950. Since that time it has become a favorite for cartridges like the 270 Winchester, 25-06 Remington, 280 Remington and 300 Winchester Magnum. As an Extreme Extruded propellant it shares the fine quality of insensitivity to hot/cold temperatures, as well as superb uniformity from lot to lot. H4831SC - Ballistically, this Extreme Extruded powder is the exact copy of H4831. Physically, it has a shorter grain size, therefore, the designation SC or short cut. The shorter, more compact kernels allow the powder to flow through the powder measures more smoothly, helping to alleviate the constant cutting of granules. With the smoother flow characteristics comes more uniform charge weights, while the individual grains orient more compactly, creating better loading density. Available in 1 lb. & 8 lb. containers. Take the exteme tour"

They are designed to be the same burning rate. However, burn rates do vary between lots of powder, so a 'maximum' charge with that 'old' lot of powder one had last year may be a bit over maximum with the new lot one bought this week.

I once - long ago when I was younger and didn't get enough sleep - used a new can of H4831sc in my 'heavy' load in an 'improved' .30-06. Chronographed a 200 grain Sierra SPBT at just over 3150 f/s. Nothing went really wrong, except I could decap the brass (only five rounds) by blowing into the case mouth. As best I could figure, it was running about 80,000 psi.

Not Hodgdon's fault, my fault for not pay attention to the powder change.

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